Using this CR2032-HFN battery is easy. First, locate the battery compartment on your VY or VZ Holden Commodore key fob. Open the compartment carefully. Remove the old battery. Then, place the new CR2032-HFN battery in the compartment, making sure the polarity is correct. Close the compartment. As for maintenance, keep the battery in a cool and dry place. Avoid exposing it to extreme temperatures or moisture. When it comes to disposal, follow local regulations for battery disposal. If you notice the key fob not working properly, check the battery first. And if you need more batteries in the future, you can trust our 25-year experience in supplying quality appliance parts.